org.jetbrains.kotlin.resolve.calls.DiagnosticReporterImpl.kt Maven / Gradle / Ivy

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/*
 * Copyright 2010-2016 JetBrains s.r.o.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.jetbrains.kotlin.resolve.calls

import com.intellij.psi.PsiElement
import org.jetbrains.kotlin.diagnostics.*
import org.jetbrains.kotlin.psi.Call
import org.jetbrains.kotlin.psi.ValueArgument
import org.jetbrains.kotlin.resolve.BindingTrace
import org.jetbrains.kotlin.resolve.calls.model.*
import org.jetbrains.kotlin.resolve.calls.model.DiagnosticReporter
import org.jetbrains.kotlin.resolve.calls.tower.CandidateApplicability
import org.jetbrains.kotlin.types.KotlinType
import java.util.*

// this file is example for future use


object CallDiagnosticToDiagnostic {
    private val diagnosticMap: MutableMap, KotlinCallDiagnostic.(PsiElement) -> ParametrizedDiagnostic<*>> =
        HashMap()

    private fun  checkPut(
        klass: Class,
        factory: C.(PsiElement) -> ParametrizedDiagnostic?
    ) {
        @Suppress("UNCHECKED_CAST")
        diagnosticMap.put(klass, factory as KotlinCallDiagnostic.(PsiElement) -> ParametrizedDiagnostic<*>)
    }

    private inline fun  put(factory0: DiagnosticFactory0, klass: Class) {
        checkPut(klass) {
            (it as? E)?.let { factory0.on(it) }
        }
    }

    private inline fun  put(
        factory1: DiagnosticFactory1,
        klass: Class,
        crossinline getA: C.() -> A
    ) {
        checkPut(klass) {
            (it as? E)?.let { factory1.on(it, getA()) }
        }
    }

    private inline fun  put(
        factory2: DiagnosticFactory2, klass: Class, crossinline getA: C.() -> A, crossinline getB: C.() -> B
    ) {
        checkPut(klass) {
            (it as? E)?.let { factory2.on(it, getA(), getB()) }
        }
    }

    init {
//        put(Errors.UNSAFE_CALL, UnsafeCallDiagnostic::class.java, UnsafeCallDiagnostic::receiverType)
        put(
            Errors.TYPE_MISMATCH,
            TypeMismatchDiagnostic::class.java,
            TypeMismatchDiagnostic::expectedType,
            TypeMismatchDiagnostic::actualType
        )
    }


    // null means, that E is not subtype of required type for diagnostic factory
    fun  toDiagnostic(element: E, diagnostic: KotlinCallDiagnostic): ParametrizedDiagnostic? {
        val diagnosticClass = diagnostic.javaClass
        val factory = diagnosticMap[diagnosticClass] ?: error("Illegal call diagnostic class: ${diagnosticClass.canonicalName}")

        @Suppress("UNCHECKED_CAST")
        return factory(diagnostic, element) as ParametrizedDiagnostic?
    }

}

abstract class DiagnosticReporterImpl(private val bindingTrace: BindingTrace, private val call: Call) : DiagnosticReporter {

    override fun onCallArgument(callArgument: KotlinCallArgument, diagnostic: KotlinCallDiagnostic) {
        val d = CallDiagnosticToDiagnostic.toDiagnostic((callArgument as ValueArgument).asElement(), diagnostic)
        if (d != null) {
            bindingTrace.report(d)
        }
    }

}

class TypeMismatchDiagnostic(
    val callArgument: KotlinCallArgument,
    val expectedType: KotlinType,
    val actualType: KotlinType
) : KotlinCallDiagnostic(CandidateApplicability.INAPPLICABLE) {
    override fun report(reporter: DiagnosticReporter) = reporter.onCallArgument(callArgument, this)
}